GB201319707D0 - Transparent input/output switching between synchronously mirrored storage volumes - Google Patents

Transparent input/output switching between synchronously mirrored storage volumes

Info

Publication number
GB201319707D0
GB201319707D0 GBGB1319707.4A GB201319707A GB201319707D0 GB 201319707 D0 GB201319707 D0 GB 201319707D0 GB 201319707 A GB201319707 A GB 201319707A GB 201319707 D0 GB201319707 D0 GB 201319707D0
Authority
GB
United Kingdom
Prior art keywords
volume
host computer
output switching
storage volumes
inactive
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GBGB1319707.4A
Other versions
GB2513681A (en
GB2513681B (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Publication of GB201319707D0 publication Critical patent/GB201319707D0/en
Publication of GB2513681A publication Critical patent/GB2513681A/en
Application granted granted Critical
Publication of GB2513681B publication Critical patent/GB2513681B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/16—Error detection or correction of the data by redundancy in hardware
    • G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
    • G06F11/2053—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where persistent mass storage functionality or persistent mass storage control functionality is redundant
    • G06F11/2056—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where persistent mass storage functionality or persistent mass storage control functionality is redundant by mirroring
    • G06F11/2069—Management of state, configuration or failover
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601—Interfaces specially adapted for storage systems
    • G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
    • G06F3/0629—Configuration or reconfiguration of storage systems
    • G06F3/0635—Configuration or reconfiguration of storage systems by changing the path, e.g. traffic rerouting, path reconfiguration
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601—Interfaces specially adapted for storage systems
    • G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
    • G06F3/0604—Improving or facilitating administration, e.g. storage management
    • G06F3/0607—Improving or facilitating administration, e.g. storage management by facilitating the process of upgrading existing storage systems, e.g. for improving compatibility between host and storage device
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601—Interfaces specially adapted for storage systems
    • G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
    • G06F3/0646—Horizontal data movement in storage systems, i.e. moving data in between storage devices or systems
    • G06F3/0647—Migration mechanisms
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601—Interfaces specially adapted for storage systems
    • G06F3/0668—Interfaces specially adapted for storage systems adopting a particular infrastructure
    • G06F3/067—Distributed or networked storage systems, e.g. storage area networks [SAN], network attached storage [NAS]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/16—Error detection or correction of the data by redundancy in hardware
    • G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
    • G06F11/2053—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where persistent mass storage functionality or persistent mass storage control functionality is redundant
    • G06F11/2056—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where persistent mass storage functionality or persistent mass storage control functionality is redundant by mirroring
    • G06F11/2071—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where persistent mass storage functionality or persistent mass storage control functionality is redundant by mirroring using a plurality of controllers
    • G06F11/2076—Synchronous techniques

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Quality & Reliability (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
  • Information Transfer Between Computers (AREA)

Abstract

An apparatus for configuring transparent synchronous mirroring volume switching comprises a first volume, a second volume, a storage area network (SAN) configured to couple the host computer, the first volume and the second volume, a memory coupled to the second volume, and a processor configured to map the first volume to the host computer, to initiate synchronization of status data between the mapped first volume and the second volume, to set the mapped first volume to an active state and the second volume to an inactive state, to copy an identifier associated with the active first volume to a memory coupled to the inactive second volume, to retrieve, by the host computer, the copied identifier from the memory, and after the retrieving, to map the inactive second volume to the host computer.
GB1319707.4A 2011-04-27 2012-04-18 Transparent input/output switching between synchronously mirrored storage volumes Active GB2513681B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13/095,646 US8782358B2 (en) 2011-04-27 2011-04-27 Transparent input / output switching between synchronously mirrored storage volumes
PCT/IB2012/051942 WO2012147013A1 (en) 2011-04-27 2012-04-18 Transparent input/output switching between synchronously mirrored storage volumes

Publications (3)

Publication Number Publication Date
GB201319707D0 true GB201319707D0 (en) 2013-12-25
GB2513681A GB2513681A (en) 2014-11-05
GB2513681B GB2513681B (en) 2015-06-24

Family

ID=47068742

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1319707.4A Active GB2513681B (en) 2011-04-27 2012-04-18 Transparent input/output switching between synchronously mirrored storage volumes

Country Status (6)

Country Link
US (2) US8782358B2 (en)
JP (1) JP5925298B2 (en)
CN (1) CN103493020B (en)
DE (1) DE112012000929T5 (en)
GB (1) GB2513681B (en)
WO (1) WO2012147013A1 (en)

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US9274916B2 (en) 2013-06-12 2016-03-01 International Business Machines Corporation Unit attention processing in proxy and owner storage systems
US9274989B2 (en) 2013-06-12 2016-03-01 International Business Machines Corporation Impersonating SCSI ports through an intermediate proxy
US9769062B2 (en) 2013-06-12 2017-09-19 International Business Machines Corporation Load balancing input/output operations between two computers
US8819317B1 (en) 2013-06-12 2014-08-26 International Business Machines Corporation Processing input/output requests using proxy and owner storage systems
US9779003B2 (en) 2013-06-12 2017-10-03 International Business Machines Corporation Safely mapping and unmapping host SCSI volumes
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US9804802B2 (en) * 2014-09-08 2017-10-31 Microsoft Technology Licensing, Llc Application transparent continuous availability using synchronous replication across data stores in a failover cluster
CN104991874B (en) * 2015-07-22 2018-02-06 浪潮(北京)电子信息产业有限公司 A kind of multi-controller storage device ALUA collocation methods based on SCST
US10079883B2 (en) 2015-12-03 2018-09-18 International Business Machines Corporation Primary device selection at operating system initialization
US10394491B2 (en) * 2016-04-14 2019-08-27 International Business Machines Corporation Efficient asynchronous mirror copy of thin-provisioned volumes
US10761767B2 (en) * 2016-07-12 2020-09-01 Hitachi, Ltd. Computer system and method for controlling storage apparatus that has replication direction from first logical device (in first storage) to second logical device (in second storage) and from said second logical device to third logical device (in said second storage), wherein said replication direction is reversed when second computer takes over for first computer
US10430121B2 (en) 2016-08-22 2019-10-01 International Business Machines Corporation Efficient asynchronous mirror copy of fully provisioned volumes to thin-provisioned volumes
CN107340973B (en) * 2017-07-05 2021-04-13 郑州云海信息技术有限公司 Method and system for accessing asynchronous logic unit
US10521147B2 (en) 2017-11-30 2019-12-31 International Business Machines Corporation Device reservation state synchronization in data mirroring
US10282258B1 (en) 2017-11-30 2019-05-07 International Business Machines Corporation Device reservation state preservation in data mirroring
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Also Published As

Publication number Publication date
US8782358B2 (en) 2014-07-15
JP2014519075A (en) 2014-08-07
WO2012147013A1 (en) 2012-11-01
US20120278568A1 (en) 2012-11-01
US20120278280A1 (en) 2012-11-01
GB2513681A (en) 2014-11-05
DE112012000929T5 (en) 2013-12-24
GB2513681B (en) 2015-06-24
US8762663B2 (en) 2014-06-24
JP5925298B2 (en) 2016-05-25
CN103493020A (en) 2014-01-01
CN103493020B (en) 2017-03-22

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Effective date: 20150702